Letter, 8 October 1882
Lecture and laboratory notebooks, 1869-1870
Postcard, 3 October 1882
Notebooks of chemical lectures, 1869-1870
Letter, 24 September 1882
Letter, 11 September 1882
Diaries, 1869-1871, 1872
Pocket diaries, 1869-1872
Passport, account book, and notecards
Notebook, 1872